Holly Willoughby has expressed heartfelt birthday wishes to her friend Emma Bunton as the pop star celebrates her 50th birthday.

Known as Baby Spice, Emma is enjoying her special day with her husband, Jade Jones, while receiving a flood of well-wishes from her celebrity friends.

The Spice Girls band members have each penned their own birthday messages. Meanwhile, Mel C and Mel B made an appearance on Heart FM, joining Emma during her breakfast show co-hosted with Jamie Theakston.

Adding to the chorus of tributes, Holly Willoughby shared a nostalgic selfie featuring both herself and Emma, capturing their bright smiles.

In her message, the 44-year-old Holly wrote, “Happy birthday Baby… we love you so very much… the kindest and the sweetest… have a day as beautiful as you.”

Emma responded warmly, saying, “Thank you gorgeous girl!”

Holly Willoughby has shared a gushing tribute to her friend Emma Bunton as she marks her 50th birthday

Emma’s Spice Girls bandmates have all shared their own tributes, while Mel Cand Mel B also appeared on Heart FM where Emma was hosting the breakfast show with Jamie Theakston

Holly and Emma have enjoy a long friendship, with both stars in each other’s close circles.

Over the years they’ve shared snaps from their fun nights out with fans, from dinners to boozy evenings. 

Meanwhile, earlier on Wednesday, Emma was snapped leaving the Heart FM studios with her husband Jade as they spend the day together.

Snaps showed the eternally youthful star boasting a big smile as she left Global HQ in Leicester Square whilst holding a gigantic balloon that read ‘Happy 50th’.  

Emma wore a pink blouse and black hotpants with a chic pink Prada bag to go with her outfit.

She could be seen holding a Dior gift bag, presumably from her bosses and colleagues at Heart FM.

Looking radiant despite the rainy weather, Emma waved to the cameras before she and Jade got into a waiting car.

Despite the social media storm with her estranged son Brooklyn, 26, Victoria Beckham led the birthday tributes to Emma. 

Baby Spice is celebrating the milestone day with her husband Jade Jones (pictured) and has been inundated with tributes from her celebrity pals 

Emma’s Spice Girls bandmates flooded her with birthday messages 

Posting to her Instagram stories, Victoria, 51, shared a throwback snap of Emma on her shoulders as they boasted big smiles during happier times.

She captioned the black and white picture: ‘Happy Birthday @emmaleebunton, I love  you so much!!’

Victoria also reshared a clip of Emma singing during their 1996 Say You’ll Be There music video.

Meanwhile, Mel B shared her own tribute to Emma, telling her followers how she will always be ‘baby’ to her.  

The 50-year-old penned alongside pictures: ‘My dear ‘BUNTON’ you will always be BABY to me even though you are now the big 50!!!!!!! Happy Birthday I Love you lots and lots and lots!!!’

Geri Halliwell, 53, also posted: ‘Happy 50th birthday! love you so much, you are such a special person with the biggest heart – grateful to have you in my life wishing you so much joy and love.’

Mel C – aka Sporty Spice – shared a video montage of memories with Emma as she wrote: ‘We have experienced so much together since that day we picked you up in Geri’s battered Fiat Uno at Maidenhead station, the day that changed everything. I love you with all of my heart.

‘Always there for me and everyone in your life you’re the most incredible Mum, bandmate and friend. Happy Birthday my love, I can’t wait to celebrate you!!!! Have the best day, month and 50th year!! LOVE YOU BABY!’